<template>
    <div style="display: none">
        <iframe
                :id="id"
                :src="url"
                frameborder="0"
                width="100%"
                height="550px"
                scrolling="auto">
        </iframe>
    </div>
</template>

<script>
import Vue from 'vue'
import { ACCESS_TOKEN } from "@/store/mutation-types"

export default {
  name: "PdfPreviewModal",
  data () {
    return {
      url: window._CONFIG['pdfDomainURL'],
      id: "pdfPreviewIframe",
      headers: {}
    }
  },
  created () {
    const token = Vue.ls.get(ACCESS_TOKEN);
    this.headers = { "X-Access-Token": token }
  },
  computed: {

  },
  mounted() {
    window.addEventListener('message', this.handleScanFileMessage);
  },
  methods: {
    handleScanFileMessage (event) {
      // 根据上面制定的结构来解析iframe内部发回来的数据
      const data = event.data;
      console.log(data);
    },

    previewFiles (title, token) {
      var iframe = document.getElementById("pdfPreviewIframe");
      var json = { "title": title, "token": token };
      iframe.contentWindow.postMessage(json, "*");
    }

  }
}
</script>

<style scoped>

</style>
